Permanent vessels for Quintessence – that is, ones that don’t disintegrate when their essence gets used – are called Periapts (for Technocrats, Matrices). Essentially, those batteries work like Tass, but they’re composed of materials that don’t disappear when the energy gets used.

To employ the energy within such batteries, a mage with Prime 3 shifts Quintessence into, or out of, an object that has been prepared to accept and store that energy.